To engage a woman in the sexual act of a 'Spit Roast' by surprise. This daring manouevre is best inititate with oral sex first, afterall, if she has her mouth full it's harder for her to object.
'We took her back to our place and she got so worked up, that she loved it when I slipped in behind her for a Surprise Roast'.
by Brick Boy & Spud May 20, 2009